Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

Hi, I'm Charles Yeo, a software engineer specializing in building web and mobile apps using React.js and React Native, with a strong emphasis on intuitive user experiences. I enjoy leading development efforts, delivering robust solutions, and collaborating with cross-functional teams to create delightful user interfaces and efficient platforms.…

Yeo Cheah Haw (Charles)

PRO

Web Developer, Front-End Developer, App Developer, +2





Hi, I'm Charles Yeo, a software engineer specializing in building web and mobile apps using React.js and React Native, with a strong emphasis on intuitive user experiences. I enjoy leading development efforts, delivering robust solutions, and collaborating with cross-functional teams to create delightful user interfaces and efficient platforms.…

Available to hire

Singapore, Singapore

Hi, I’m Charles Yeo, a software engineer specializing in building web and mobile apps using React.js and React Native, with a strong emphasis on intuitive user experiences.

I enjoy leading development efforts, delivering robust solutions, and collaborating with cross-functional teams to create delightful user interfaces and efficient platforms.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Advanced

Malay

Intermediate

Chinese

Fluent

Work Experience

Lead Software Engineer at Aquariux

April 1, 2025 - September 23, 2025

Spearheaded the development and enhancement of a white-label trading platform (web and mobile), including Execution Management System (EMS) apps with in-house trading charts inspired by TradingView, a client-facing back-office system, and a root admin dashboard.

Full-stack Developer at Freelancer, Johor Bahru

December 31, 2019 - September 23, 2025

Developed a mobile app with React Native and Expo for booking medical services across Johor Bahru, improving operational efficiency and accessibility for patients.

Frontend Developer at Ciro Solutions, Kuala Lumpur

August 31, 2019 - September 23, 2025

Developed an operations management and configuration dashboard to support cross-company teams, enabling deployment monitoring, status tracking, and data visualizations with D3.js.

JavaScript Developer at Yoozrr Technologies, Petaling Jaya

January 31, 2019 - September 23, 2025

Developed and maintained an online import/export forwarding book system for a logistics company, streamlining coordination between forwarding and liner operations to improve efficiency, optimize financing workflows, and reduce human errors. Also developed a mobile app in JavaScript with React Native for haulage drivers to manage assigned jobs, trailer handling, and container collections.

Lead Software Engineer at Aquariux

January 1, 2020 - April 1, 2025

Led development and enhancement of a white-label trading platform (web and mobile) and an in-house EMS with a client-facing back-office and admin dashboard. Designed and developed an in-house trading charting platform inspired by TradingView, delivering advanced indicators and drawing tools with seamless web/mobile integration. Implemented deployment dashboards and a configuration-driven approach to enable brokers to customize deployments, with a rollback strategy and readiness for patches.

Frontend Developer at Ciro Solutions

January 1, 2019 - August 1, 2019

Developed an operations management and configuration dashboard to support cross-company teams, enabling deployment monitoring, status tracking, and data visualizations with D3.js, improving operational efficiency and cross-team collaboration.

JavaScript Developer at Yoozrr Technologies

August 1, 2017 - January 1, 2019

Developed and maintained an online import/export forwarding book system for a logistics company, streamlining coordination between forwarding and liner operations to improve efficiency and reduce errors. Built a mobile app in JavaScript with React Native for haulage drivers to manage assigned jobs, trailer handling, and container collections. Implemented GraphQL with Apollo Client to manage data fetching, caching, and state across web apps, eliminating the need for custom network handlers.

ASP.NET Developer at Astro Malaysia

May 1, 2015 - April 1, 2017

Developed and maintained the Astro Malaysia Single Sign-On (SSO) portal; integrated with AWS cloud services (EC2, S3, ELB, SES) and ELK for logging; monitored API status and performance with Runscope; collaborated with teams to address frequent change requests.